REVIEW: Everything Wrong With A 6.6 Duramax LB7
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- Опубликовано: 30 сен 2024
- What could possibly be wrong with the 6.6 Duramax LB7?
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LB7 Duramax is the best diesel pickup engine of its day (2001 to 2004.5), Rich lists everything wrong with the Duramax LB7 covering everything including injectors, water pump, head gaskets and the Allison transmission. #RichReviews #EWWengines
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I like this dude, he's got a shop cat
Is it really a shop without a cat
Had
Unfortunately marley died, but he has one of her kittens now
I got a shop cat. Do you like me?
I use to own a lb7
Got over 600k. Neva replace trans, water pump, or head gasket. Only replace injectors twice. Was a damn good truck.
Melvin S I’ve done injectors on mine and now time for head gasket ... and no I don’t beat it or have a tuner
If you had a 7.3 power stroke, You wouldn't have to do all that.
@@pipeline_hank5277 good idea to drain oil from injector on top Yt power stroke help explains it kill injectors as in does not circulate well n needs chanced with oil changes ,bit odd but makes sense
@@pipeline_hank5277 7.3s have injector issues also. An 01 lb7 compared to a 01 7.3 was a night and day difference. 7.3s have no power compared to a lb7. God you 7.3 fanboys are something else
If you had a 6 bt, you wouldn't have to do all that and get decent mileage. 7.3 was a good engine but my 6 bt get's about 6 mpg more and pulls like a freight train.
The kitty cat was ready to help. Lol
Need more cat content. I'd make a channel just working on my drift car with my cats lol
,,, DE-CAT-BOSS !
I like duramax but the cat giving him a hint "CATERPILLAR" should been the diesel put in the 80s & 90s GM pickups instead of Detroit$ had that been solidified there would be no Isuzu duramax.
Have a 2004 LB7 with 560k, bought new in 2004. Did injectors for the first and hopefully last time at 530k. It’s all about good, clean fuel.
And removal of the air from fuel with an air dog .
I have a 2015 LML. Threw a rod at 189k miles. It cost me 25 thousand dollars for a new engine. Man I miss my LB7
An LB7 with new injectors, ARP studs, and head gasket makes a lifetime running truck along with that Allison trans. Just keep up the paint and get the rust off the bottom, no reason why it won't be a lifelong tool.
LB7 LLY and LBZ are the best years of the Duramax I got 222k on my 05 and still going strong sadly after 08 they stating have the same issue that ford 6.0 diesel has!
@@waffenbear117the new duramax just ain't as good as the 01-10 in my opinion
Great video! And perfect explanation on the LB7 I posted a video months ago and it’s tough to hit all the points take care
I love your videos truck master!!!! I didn’t know you watched this channel! That’s pretty cool!!!
I've got 200k on my current Bosch injectors and balance rates are still good and no issues. I swapped them in April 2016 at 800k. I currently have 996k on odometer. 2001 Chevy LB7 at stock power.
Got any tips on how you got the mileage out of the truck?
@@jonnyg44 Keep it stock and don't beat on it everyday all day.
@@joshanderson1019 that and lift pumps with double filter system help the life DRASTICALLY
They'll run forever
@@masterjerry5442 I'm just now seeing these replies... haha. I'm on those same injectors and truck is pushing 1.4 million miles.
So EVERYTHING thats wrong with it are injectors and the possibility of a water pump? That leaps and bounds better than a powerstroke
... and for the water pump, my LB7 water pump lasted 205k. It was a PITA, but at least it lasted a LONG time.
i guess it depends on alot of things but i have 2 2001 powerstroke's both have over 350k miles and never replaced anything other than starters and alternators
divedeep25 it’s because other powerstroke owners buy cheap eBay tuners and “turn” it up.
@@divedeep2580 Sounds like 7.3
Is it? 7.3s are pretty fuckin mint and have no serious problems like injectors. Remember this engine was out the same time as as 7.3s, 6.0s are a different story. but if i had the money id be rockin a 6.0
Good advice but my LB7 was bulletproof. Kept that truck for 11 years. Never had any issues with the engine or transmission. Pulled a 37 ft. 5 wheel . 330,000 when I traded. Amazing vehicle. I had a friend with a power joke and I just loved watching him work on it.
Hilarious. Never heard this before
@pigdestroyz heard it too many times man these duramax engines are superior and best part is you don't have to rip the fucking cab off for small repairs fucked over rebuilt dodges for a reason
@@badazz2969 I agree, but I call bs that duanequam7709 didn't have to do injectors in those 330,000 miles
@@badazz2969my 12v I can almost work on with my eyes closed, talk about a well designed engine , anything newer then 2000 becomes a nightmare
Did he have a 7.3 or 6.0?
I'd love to see more vids like this for any and all engines! Regular or commercial even. I like to do research before making a purchase but with forums you never know the reliability of the information you're receiving. To know a REAL mechanic is providing the info is a huge help. Thanks!
I'm a ford guy with a love for cummins. just can't stand the trucks they come in. lol. I'm doing a P pump 12V into an 86 F350 CCLB.. I bought a high mileage LB7 six months ago for a crackhead price. I've had 7.3 and 6.0 trucks. the truck is stock other than exhaust. It runs circles around any other stock deezul I've had. The injectors on mine were done at 260K. i've got 290K on it now. pulled a 35' gooseneck with 25k lbs of concrete slabs an hour home last week and couldn't believe A) it did it so well, B) how well it stopped with 3 axles of brakes.
It's a badass truck I got cheap to pull shit. Its had a heavy trailer on since the day I got it. The injectors get a bad wrap because of the cavitation caused from the CP3 sucking fuel from the tank with no help from a lift pump. so now you have cavitation, shitty fuel, water, etc and its a recipe for disaster with the nozzles getting sandblasted essentially. A good lift pump and extra filtration will do wonders on these injectors.
Freakingstang why? They look better, and the transmissions honestly hasn’t been a issue since 2007
I think they look better too but that is subjective.
Two years later she’s at 360k and no engine related issues. Body is starting to show its age. Front end needs some work but she keeps truckin along. More than I can say about my 6.7 Cummins swapped 07 psd or my 24v Cummins swapped obs. Lol
@@Freakingstang awesome to hear, I may trade my single for cab Cummins for a nicer daily extended cab duramax I’ve always wanted one
@@cameroncaltabiano5030 if you keep it stock it’ll last forever. If you put tunes on it, it will need trans work sooner than later
Miss my LB7. After injectors were done, over 350k no blow by, sounded amazing, hauled anything, loved mud. I'd get another 1 in a heartbeat
“Pay to Play”...boy have I learned that lesson :D
Next video, can you review the shop cats?
Marline has passed on after 14 years.
Ftreekitty is her prodegeny and is shopcat#1
Do a vid on the Ford 6.4/Maxx 7. That should be a good 30-40 min video.
Cracked pistons and emission bs, not much more is there?
@@traxxasrcfun 6.4 is a grenader at worst, non rebuildable at best. Can't even get parts for them anymore. A long block from Ford is $$$$.
@@SomeTechGuy666 um ok, so you agree
They are junk. You can not bulletproof a 6.4 because they had too many failure points. You can bulletproof a 6.0. The 6.4 was a lot worse than the 6.0. Parts aren’t cheap on the 6.4 because Ford won’t even sell you the parts because of Navistar. The 6.4 is designed to last until the warranty is done. After it’s out of warranty, they fail like mad. Stay away from the 6.4. Any 08-10 Super Duty is junk no matter if you get the 5.4 and 6.8 3 valve or the 6.4 PSD garbage can.
@@atx-cvpi_99 ahhh i see, and yeah the gassers are 3vs in that time right?
Normally I'm a fan of the blue oval, but this vs the 6.0 and 6.4 is no competition. I've driven all (except the 6.4) numerous times and this, especially with the allison, is the clear winner. Maybe everything wrong with 6.9/7.3 IDI's next? That's my cup o' tea
I think he already did everything wrong with a 7.3 or 7.3 idi
@@steve6.7 he did the 7.3 powestroke
Funny how this was about the 6.6 Duramax and suddenly somebody had to spout about some other engine totally unrelated to this. Duh.
Oby-1 if you watch the beginning you’ll understand why
Ford can't build decent diesel engines to save its sole. The rest of the trucks are great. Ford + Cummins = winner. Ford + Duramax = winner too.
good to the point video.everything you've mentioned I've replaced. bosche injectors,ARP head studs, c series head gaskets,mbrp downpipe. bigger stainless up pipes,full 4 inch mbrp exhaust,glow plugs ,updated exhaust manifold (driver side) , water pump,stainless fuel lines from fuel rail,all new hardware for valve covers list goes on. i hope it lasts a while . if anyone has questions ,ask away.
How's it holding up?
Bought my 2003 Lb7 with 800 miles and got injectors at 133k,. Drove it to 318k with absolutely zero issues. Went down as one of the best I have ever had.
Very informational video! Replaced injectors and turbo on my 320k mile LB7. She runs great now! Only other problems would be the starter grinding occasionally.
Morning coffee-check
Deboss garage-check
Starting morning off right-check
Sick of comments trash talking one brand or another-DOUBLE CHECK!!!!....Every brand of vehicles has good and bad. Period. My grandpa had a early 2000s Ford F250 with the infamous 6.0L power stroke....didnt even hit 130k before it was toast and he maintained the hell out of that thing. Dodge....all I gotta say is transmission.....You can find something negative with any auto manufacturer. Its nature of the beast. Me personally I like them all, you gotta just sift through the good and bad.
Anyway...I'll stop rambling. KEEP UP THE GOOD WORK DEBOSS!!!!
I just recently bought me a 2002 LB7 duramax. She has 214k miles when I bought her shes running strong as ever right now and am loving it
How is it a year later?
Thanks for the info. Everything else you mentioned is so true...I've been through all of it. I'm glad I'm not alone.
Yeah and yours isn't even an LB7 engine!
This whole comments section is nothing but Cummins nut huggers, offended 7.3 owners, guys who are upset because it's an Isuzu engine and isn't Murican' (even though it's produced in Ohio and has more American made parts in it than any B series Cummins made in the last 20 years or the 6.7 PSD which is made in Mexico), and guys who don't understand Isuzu's role in designing and producing the 8GF1 engine (that's the real name for the 6.6 Duramax).
I personally own a Duramax, and I have not exactly been impressed. It blew a head gasket on me, and they are more expensive to fix than the competition, believe it or not.
“It’s the first of its kind of course you’re going to have problems with it” Navistar laughs at you with HEUI injection.
While I had my LB7 pulled apart for injector and turbo swap I pulled the up pipes and heat wrapped them along with the new 3" down pipe. I did find a gentlemen in Helena MT that down loaded a new tune in my ECM which moved the torque curve down in the rpm range which bumped my fuel mileage up to 21 mpg on highway with a 4x4 quad cab at 1800 rpm, happy days.
I have a lb7, only have had to replace the water pump, everything is still stock from factory with currently 320k miles, still running strong and healthy
That's because you probably don't abuse it like most people
wow no injectors done?? amazing!
Nice info. 2001 LB7 at about 4min you talk about passenger side head gasket. Mine has been goin thru coolant. There isn't any on the ground or oil. It does blow steam out of a hose that comes from a little black box. Read that it's filled with charcole. Ha idk why. I can let the truck sit for 2 days and slowly take the ratcap off and it explodes all over. It shouldnt be pressurized that long I wouldnt think. So Summing up you believe the Pressure is coming from the head gaskey?. Sorry about the long question look for to an answer thank you
You forgot to mention the fuel lines underneath the truck that like to rot out causing it to suck air and create a no start.
Australia...... that happen to me in 06 lly
When this happens, will it have no compression? Thanks
I laugh when I hear about people shitting on the 6.0. I admit that I have heard tons of stories about how bad they are. I have been very fortunate with mine I have 221000 miles on it and the head gaskets nor the injectors have been touched. However I have run into some other issues (FICM) however if you don't tune or lead foot them and watch hours of @powerstrokehelp.com you will be able to keep a 6.0 running down the road for years to come. Just take Bill Hewitt's advice and tips to the letter
My lb7 has had 2 set of injectors, 1 water pump, and 1 injector pump. 290k miles, but keeps ticking. Dealership did 1 set under warranty but they claimed it was the Colorado diesel fuel causing the issues. I lived in a small small town where my diesel brothers and I discovered more water than diesel straight from the pump. Later resolved and moved to Phoenix where all the problems stopped. Been 12 years in the big city and nothing bad yet. Change the oil, fuel, and transmission filters like you do your underwear, prepare for a great truck. I think the same goes with any truck, just keep up on routine maintenance. Nothing boils my blood more than some dummy that skips on all that and later complains how the truck is a pile of poo poo. Haha rant over, great videos bud. Can’t wait to see the swap.
Dam about 10,000 in repairs?
You change your underwear?
I think Generl Motors builds great diesels for those people out there who enjoy wrenching on them and POURING money into them. I wish I was one of those people lol.
Mine's a 2001, GMC 2500HD LB7, only has 71k miles on it, so no injector problems just yet. I love the way it drives and pulls, and I've got no problem doing injectors, head studs, and head gaskets when they go (and I'm sure they will eventually). Going to drive it until it falls apart under me. 😂
We've found that with most the GM reviews that we've done, everyone agrees with the common problems but loves the trucks anyway. I would think 8 out of 10 would buy this generation of truck again.
I love mine. 290k 22mpg 500hp. Crew cab long bed
Ted Bownas 300k miles stock only done injectors and recently replaced all the fuel hoses. First set of injectors was completely covered under warranty. The transfer case has issues too with rubbing a hole in the casing. Even got 300k miles out of the rear rotors and pads drove until the rear pads went down to metal lol since I bought new rear rotors too.
You can do a lot of repairs for the money a new truck costs.
Won’t be getting rid of mine. 450hp 24mpg. Eclb on 33s with ranch hand. Owned for 5 years. Always starts in negative temps. Had the Bosch remans done 6 years ago. Run good fuel an additive and have a lift pump. Only issues I’ve been having is dexcool rotting out all the coolant lines🙃.
I found a 6.6 durmax engine and I want to use it in my car, do you recommend that, knowing that I will change the gearbox to manual in my 2008 Sierra
I loved my lb7 but she broke my heart “bank” to many times wife made me sell lol
i have a 2004 lb7 and had the injectors replaced with bosch injectors they cost me $3006.00
With a little work lb7 is king in my book from lb7-lml anyways. I sold my loaded lml to go back to an lb7. Simple easy to work on no emissions/def shit. Great video tho very informative 👍
I love my LB7 bt don't lie LBZ is king
Lbz is king
Id take a later lb7 over a lbz in my book anyday.
Had one with 275k miles all stock. i had to replace the injectors 3 times. Sold it after the 3rd replacement.
Love my Max. Best diesel of its day. My 2001 still going strong. But i do have a smokin ass injector problem i have to get took care of.it has 250000 + miles on it and can still pull the house down...
06-07 lbz? With six speed?
That cat used to be all orange... 😄
Lol that cat is done greasy as hell from being around those nasty ass diesels!
It’s actually a different cat ruclips.net/video/3in6N-xyPeQ/видео.html
My white fur shop kitty knocked some things over then slid into a pan of filthy limited slip differential oil. I washed her off but she stunk like sulfur for months.
It took me about 4 hours by myself to replace the water pump on my lb7. Definitely a tedious job but not as hard as many people think it is. If you have the correct tools at hand then it’s really not all that bad to do in an afternoon
Lol I had basic tools, took me 3 + days
Thanks for all the LB7 info. I can tell you're a great guy by how you love on your Kitty Cat!!!
No mention of FICM failure, huh? I’ve seen more than a handful of them fail on Lb7’s
Cole Franklin harnesses or the actual ficm?
Do you have a video on changing fuel lines on a Duramax? I have a 2006.
have a 03 with 300k on it, first set of injectors went 190, just did my second set. conservative EFI tune and love the truck, would buy another one for sure.
My lb7 i thought it was head gaskets. So i did that amd it still leaked. It wnded up being the injector cup seats in the heads where pitted really bad and woildnt seal. So i had to buy new heads. The dern machine shop that checked the heads didnt loook in them holes to check them. So it had to be done twice. Yaaaaa. Lol
Why has GM never put this in a Suburban? Boggles the mind
I thought some 2500s did?
J no, they put the shit pre duramax diesel in some. It was junk
I was gonna say my boss had one but it was square body so prelb7
You can swap one into it. People do it all the time
Roma Razumovsky yeah it’s all plug and play. You need a 2500 suburban though. And then get a wrecked Duramax truck and swap it all over. Use the fuse box from the Duramax and it literally all plugs in factory.
Even if your suburban is 2wd the 4x4 stuff bolts right in
Since when does john cena have a RUclips channel?
5mm Allen key does most of the job. Hammer the socket into the bolt. The jarring seems to loosen them up. For anyone doing the job
i just tac welded crappy rounded out allen keys to them and got some different hardware to replace them. but yes hammering a socket on it works wonders for not only these but any rounded off bolt/nut. hell even "lock" lug nuts too
Hi
Can i change 5.3 sirra engine 2008 to 6.6 deisel lb7
Diesels and cats. Ye that's why I'm here
Military Joint Light Tactical Vehicle ( JLTV ) Program awarded to OSHKOSK Corporation ... will be Equipped with heavily Modified L5P 6.6 Duramax ( Banks Power Upgrades ) for USA and our Global allies Military use ... Without Doubt Oshkosk and its Team members Looked at all Engines on the Market ... Selected L5P 6.6 as the Baseline ... to me that proves duramax is a good bet if in the market for new vehicle .. just my two cents worth ... please comment / add to .. HAPPY NEW YEAR 2019 to all who may read this Comment
I'm a current owner of an lb7 and the struggle is real with injectors..love the truck though!
Right on the money with all these things mentioned. Had a 2002 bought it with 8k drove it till it had 328k, and had very few issues only injectors, and water pump. Very very good truck, and pulled well for the day.
Is it me, or was he way more picky in the powerstroke video?
INJECTOR CUPS! probably the shittiest thing on the lb7 that I have had to deal with since owning mine!
Chris McLaughlin hey I agree. Mine blew out 3 different times. Not fun tearing the heads apart. I did a lot of research and if you plan to get into them again SoCal diesels billet hold down clamps will fix that issue. The factory ones flex and bend so they allow the injector to move and the injector cup. That then allows the cup to lift and you have coolant blow by. The billet ones come with ARP studs and torque to 55lbs and don’t flex and bend. People are running them with 1000+hp and have no issues. I’ve had no issues with mine since the install.
Not the only early 2000s Isuzu diesel with injector issues. I have an 82 1.8L Isuzu diesel with mechanical injectors with 192000 miles with absolutely no problems. Daily driver.
Mechanical injectors usually good for a few billion shots
@@DEBOSSGARAGE the fuel distributor, on the other hand, has required a rebuild.
This isn't a Isuzu tho. It's a design by dmax ltd which is owned by gm and Isuzu which both companies designed this engine.
@@jdrok5026 you literally just contradicted yourself.
@@der_pinguin44 no it's technically a dmax ltd engine. Unlike the duramax 7.8l which is actually a Isuzu contradicting myself would be saying the 7.8l isn't a Isuzu when that actually is. The 6.6l is actually more gm then Isuzu. The lmm and lml are 90 percent gm designed the l5p is almost 100 percent gm designed.
I don’t have the duramax, I have the 6.5td and the only real problem I’ve ever had with it was the fuel pump but once I put a better pump on it it was just fine
Good video! LB7 owner here, it’s been my first diesel and it’s been great for the past 10k miles I’ve had it. I am scared to death that something could break that could cost me a small fortune tho 😆
Sound like scotty Kilmer 🤣
@@brianbonilla9276 3 years later and she’s still holding strong with no huge repairs 💪🏻
+290k on my 03 LB7 odometer stopped working years ago at 290k, one transfercase (pump rub), injection pump, rear driveshaft (broken), some u joints, rear differential yoke (broken), water pump, broken drivers side motor mount, transmission mount and a Allison with broken hard parts. 2 injectors done at 80k balance rates all with in specs no oil dilution and no more smoke than it should make for current tune. 7.5" lift 37s, 215hp tune with a 4400 red line, stage 5 Allison, k&n panel filter, exhaust and a homemade boost increase valve. Truck gets used for a lot of different things and is no street queen. It's pulled a lot of duty hauling firewood, cars, junk and loads of gravel. I use it hard and I'm not afraid to beat on it, it's the best truck I've ever owned and will rebuild it piece by piece if I have too. I've done all my own work on it minus the injectors they were warranty and haven't had any head gasket problems, I do have a leaking steering box so I need to pull it and see if it's repairable. If the head gaskets ever go I'll pull it and do head studs, connecting rods and compound turbos. Would love to swap one into my 17 Rubicon since my truck gets twice the fuel mileage. If they were as cheap and easy to come by as a LS I'd be swapping one into my Bel air instead of a LS.
"Much more reliable than the powerstroke of it's day"
Did he really just say an lb7 was more reliable than a 7.3?
Thought the same thing.
I think he meant Powerstroke 6.0 even though that came out a few years later.
@@johntousseau9380 could be because 6.0 came out the last year of the lb7 production I believe.
He’s got to be referring to the 6.0 which didn’t happen until ‘03. There’s no way I’d take one over a 7.3 powerstroke.
Fellas iss not a powerstroke it’s a goddamn international engine
I use to like ferd until the 6.OH came out, ever since then they have made garbage.
I can never like GM, for one I have never had a good GM product ever but worse than that GM now stands for government motors and that alone would make me stay away from em.
Pretty norm that GM makes an easy job harder in my experience.
I'd take a good ol reliable 7.3 any day, the 6.6 can't make a million miles without a rebuild, many 7.3s have and 7.3s don't blow head gaskets unless you overheat it alot.
They make sac style injectors for the lb7 now, those last alot longer.
brenton freeman they only come in 45% over and up though right?
@@isaacrecord6162 yes, but as i understood it you can run stock fuel levels with 45s but you have more tuning ability if you want more fuel.
I bet do differ. It’s not more reliable than a 7.3
Mitsubishi makes some damn tough engines Isuzu as well but i bet half these “diesel” guys don’t know is that they’re Chevy has a Isuzu produced motor under their hood. To me it makes no sense why you wouldn’t put something that’s been in industry equipment for almost 100 years but everyone can’t have a Cummins I guess.
Isuzu doesn't produce it gm and Isuzu designed it by dmax ltd has produced the engine since the engine was announced.
its a gm funded block who sold it under dmax but it is izuzu badged engine
@@valvefloatproductions9083 yes because Isuzu is part owner of dmax ltd and they cast the base for the cylinder heads of lb7s. It's neither Isuzu nor gms as Isuzu does use gms branding to sell a true Isuzu the big 6 cylinder in the medium duties they used to sell and then gm uses dmax ltd to sell a gm worldwide powertrain diesel that they got from vmi when they bought them and then changed it from vmis spec and made it their own and let vmi keep the base then sold the company
@@jdrok5026 Id still call it a hybrid between the two, Ive seen too many in for stupid things with the izuzu badge on them to care about them that much its not like its a cummins or a detroit
@@valvefloatproductions9083 it is a hybrid it takes gms and isuzu engineers to make dmax ltd work. They actually according to all 3 companies send in and out engineers from both gm and isuzu in basically a rotation to keep the company moving. But again the duramax 6.6l was never produced in Japan maybe parts cast there but theres some claims of the parts for the lb7 being cast in Germany taiwan and in defiance Ohio.
There’s no way that engine is better than the powerstroke of its time. In 01 the 7.3 was still in trucks. 7.3 is far better than an lb7
Not really less power just as reliable.
I love Duramax's.
I had a 2002 and as far as I know gm never recalled them. I was told that they raised the warranty period to 10 years or 200,000 miles. When my injectors failed I had 115000 miles on it but it 12 years old. My dealer charged my $4500 to replace the injectors. After that, I sold my fifth wheel trailer so didn’t need the diesel anymore. Also, replaced the water pump not long after the injectors. Now am 65 years old and that truck, out of all the vehicles I have owned, is the one I was the most proud of when I bought it. Paid 33k for it. Sure can’t do that nowadays!
I had the CP3 pump go out on me. I ended up upgrading to a bigger pump. Was a pain in the rear. Great truck though
That is because GM didn't use a lift pump to feed the CP3. Dodge did.
You should do a everything wrong with all the other Duramax engines.
Doing the fuel pump in the valley of the engine is way worse then doing injectors terrible!!! You need a lift pump!!!! And fuel filters CHANGE THEM!!!! As for the head gasket get a 3" high flow downpipe from Duramax tuner reduces EGTs considerably. As an owner of an LB7 in the great white north an excellent engine for cold starting no glow plug cycling and it'll start no problem -15. Surprising the GM dealer isn't that bad for parts either
$400 a piece for injectors?
I just bought my first diesel, an lb7, this last summer. Truck had 180k on it and fresh silicone coming out from under the valve covers and good balance rates so I figured injectors has been done, which, they were. However, I did something stupid. I had the shop that sold me the truck do a 5 pack of EFI live tunes on it, then I installed a cat 2 micron filter conversion in the factory location. Those 2 together are a terrible idea. If you want to change your filtration to help your injectors, spend the money and get a good lift pump. I wound up with an injector sticking open, balance rate for that particular one was +14 😬, as far as anyone I've talked to can tell it was because fuel demand was up with the tune, fuel flow restriction was up with the filter, there was nothing helping the truck out and I was towing on a hot day. Dummy me. Now I've got a fass 165 lift pump and a new injector under warranty and all is right with the world, for now anyways. So, a lift pump is a solid idea on any diesel I'd say, and I would venture to say it's almost essential on any Duramax because of a lack of one from the factory (except the new l5p), best $700 I ever spent on that truck. Also, what Rich said, you'll slip your tranny with a hot tune if it ain't built. It is what it is, gotta pay to play.
Gale Banbks is gonna push these (L5P)to the limit in 2019 , find the weak points and make parts for these that will fix all the achilles heal problems and allow it to make some BOSS horsepower! From what he did this year just with Differential Covers I can't wait to see what ends up happening
I mean almost 1000ft/lb torque from a production passenger diesel engine is insane as it is
shoominati23 LMAO!!! Gale Banks isn’t going to do sh*t. He’s still hasn’t done anything with diff covers besides trying to sell his own.
If you are actually a buyer of his products, you will learn that the products don’t last and he doesn’t offer a warranty worth having.
I speak from experience!
@@mikemiller9119 YEP My buddy bought a turbo kit for a 6.2 diesel... they sent some wrong parts... fought with him saying they cant be wrong... and now the POS in like 1.5 years the intake has cracked... they won't do anything POS company suck at the tit of the gov and thats about it.
Remind me again, what have you done for the performance industry?
shoominati23 be a customer. The number one thig for a business to serve and make happy if not no customers which means no business
Love your channel, even if you dislike Ford so much.
A Ford 7.3 was out during this time and other than crank sensor they were very reliable. That engine was tuned to 45% of capacity. The tranny could be the weak link
Then the 6.0 came out, different story. It was tuned to 85% of capacity. Tranny in that is the 5r110, very reliable we have no less than 300k miles and they are all original. If you look at the international side the vt365, 6.0 in international world they had very little issues with headgaskets. They ran the engine much cooler as they did not need egr in that class and kept the power output lower than Ford. Heat and egr killed many 6.0...along with poor mait. Maint is key to 6.0, all of ours do well but we are very strict with mait. Plus people put a tune on truck and pull 14k, no common sense.
Heat and lack of mait, will kill anything.
I prefer the 6.0 vs 7.3 due to truck ride quality, fuel mileage is good, and much better suspension after 2005. Tranny is much stronger in 6.0. Engine to engine 7.3 wins, but overall the truck is better
2
My buddy has an LB7 with 190k miles stock and runs like a dream and has put itself to work pulling loads and all while my 6.0 that had 160k and 10k of repairs on top still blew its heads
Gaspar Calderon tunes are what kill any diesels. Fords just come out the factory useless. But any other diesels keep the petal off of the floor and no tune and diesels last forever. Not mine it’s in the shop every other Tuesday cause my trucks so fast I break parts left and right
There is a problem with every engine ever made . personally my LB7 has been a damn good engine. Did my injector rebuild in 6 hours .
That's exactly what I always say to my PowerJoke friends. Shit breaks - on everything, eventually. I'd rather have to pull covers to do injectors every 80-150k (which EVERY modern diesel will need from time to time) than have to deal with the nightmare emissions problems and shit fuel economy of some of the ones between the LB7 and the L5P, not to mention the issues in just about every powerjoke after the 7.3. Though, the newest generation duramax supposedly fixes a lot of the fueling bugs with a new pump from someone else, but we will see about that... Plus I'd avoid a truck with a Bosch CP4 like the plague. I'd rather have a CP3 any day of the week, as the CP4 which all the big 3 used (and ford and cummins still use, I believe) fails more often than a bad student or even the original, pre-recall Bosch LB7 injectors.
That's the best power plant I've ever owned.
I got a crew cab long bed 2 wheel drive lb7 5 years ago. Owner said it already had the injectors done had an airdog. I built the transmission it's wonderful hadn't had any problems love the lb7
Sweet shop kitty says, “what you doing, what you doin, meowmeow?”
Didn't mention the injector cups, if you do not install them correctly and they don't seal well, you'll have coolant system pressure issues
Or hydrolocked duramax lmao. I have seen myself several times working for gm years ago
KITTY!
Titty!
@@miguelrocks1000 Tits
Good video 👍. Should be noted that SAC style injectors are available for the LB7 which would give you the reliability of the lly and later Duramax engines
You are saying the LB7 is better than the 7.3? The 6.blow didn’t come out until 2003 1/2
Hell no 7.3 all day
Those things will chug along all day and night as long as you don't start adding power! Will even run on varsol if you need it to
7.3forlife and the stock LB7 will run circles around a stock 7.3 and especially the stock 6.blow.
@@jimmygrant3212 your Duramax may be faster but not more reliable than a 7.3l. the Navistar engine is a real medium duty engine. No hollow crank shaft or aluminum heads
@@jimmygrant3212 No shit the 7.3 is a dinosaur motor, LB7 is much more modern design which obviously produces more power. Lets not bash the 6.blow when bulletproofed they are very fast and reliable all about scheduled maintenance. 6.4 is a throw away drag racing machine that self destructs its self lol
I am considering a Duramax/ Allison swap into my E350 motorhome. That is of course after I finish my 4-71 Detroit swap into my 56 GMC pickup.
Your cat should do an engine build
We (at the shop) looked up how many engines we have replaced in the last 10 years. 170 Powerstrokes, 17 Cummins, and 2 Duramax. Now I have to qualify that this area is Ford country.
Good video this makes me appreciate my old 12 valve all that much more.
Ram_Diesel_Power
Yup love my 97 5speed 12v 4x4, and my 88 12v f150 4x4 Fordcummins! These truck will last me for at least 20 more years. I live by the KISS theory, Keep It Simple Stupid!
Is this necessary to comment on nearly every diesel video? I’ve seen this comment on EVERY diesel video I’ve seen in the last 2 days, give it a rest lmao
Hugh Mungus would you expect anything less from me. It’s not my fault you watch the same quality videos as me. 😂🤔
Other than everything on a 90s dodge truck is a pile of shit except the engine lol
Adam Bryant I’ve had my truck for 15 years and odds are I’ll have it longer then any thing you will have. 😂
That is obviously a CAT motor ;-) he/she says it's purrrrfect! (what's the kittys name?
Only real fans are here this early 🤙
We let the dogs out. Woof woof woof!
If only RUclips didn't notify me earlier
Excellent work man! I always appreciate a man who is genuine and authentic. Life is hard and dirty for most of us...sometimes hot sometimes cold. I'm thinking of buying one but always wanted the simplicity of the Cumming 5.9. Going to check out a couple of Duramax diesels this weekend. 2001 dually with the ZB7 and a 2005 LLY.
BEST INTRO EVER!! That powerstroke owner joke almost killed me.
Fuck you😂
No 6 speed manual? No Deal.
I don't think I've ever heard a common rail injector referred to as "a mechanical injector made electronic" before.... I guess that's somewhat accurate. A mechanical injector has a nozzle with a needle inside of it blocking off the spray holes. The needle is held shut by a spring. The spring tension is set using shims, and this controls the injector opening pressure. The injector receives a pulse of high pressure fuel from the injection pump which pushes the needle against the spring, causing fuel to be injected. In a common rail injector, the nozzle is constructed the same way, but the nozzle spring is much smaller. There is high pressure fuel at the nozzle at all times when the engine is running. Rather than spring tension holding the needle shut, there is a control rod that rests on top of the needle, which extends up into the top of the injector. The top of this control rod sits in the control valve. Fuel at rail pressure occupies the space between the control valve and the top of the rod, balancing out the fuel trying to push up on the needle. When it's time for the injector to fire, the solenoid pulls up on the control valve, which vents fuel from the area above the control rod, allowing it to move up, which allows the needle to move up and injection to occur. In theory, very simple and elegant system, but in practice, the precise tolerances involved are mind blowing. Setting up one injector, measuring all of the shims and clearances, takes a great deal of time, which is why they are so much more expensive than older mechanical injectors.
I manage a fuel shop, and my company is a Bosch authorized rebuilder of injectors and pumps. The three parts sets unique to LB7 injectors are nozzles, control valve set, and injector body. Everything else was shared with other designs. The exact same solenoid fits 5.9 Cummins common rail injectors, as does the armature base plate assy. and the control valve ball. For some reason, LB7 injectors are bad for leaking just under the high pressure fuel inlet. The solenoid leaks can and do happen to just as many other applications using this same solenoid. That green test bench at 0:56 is a Bosch EPS 205. My company has three of them. Usually when a set of LB7 injectors come in for a "making oil" complaint, we see them leaking from the main body. Less commonly, they'll be leaking from under the solenoid nut. (Cummins injectors do this as well). Injectors that are stuck open are usually a result of aftermarket rebuilds using poor quality control valve sets, or fuel contamination.
The Bosch torque wrench we had to buy to assemble these is worth over $14,000 (it's an amazing torque wrench). We had to build a clean room with HEPA filtration, and the calibration bench that validates the build was over half a million bucks.
G M junk.
Thanks for the honest and great review of the Duramax. I’ve been building the Duramax since 2001 and take great pride in my work as do my coworkers. If you need any info on any generation of Duramax hit me up!!
Thanks! I appreciate that!
Was considering buying an 02 LB7...260,000 miles...3 owners... minimal towing history... wasn't worked hard... unknown to the current owner If injector's were ever replaced but has had no issues and has been a daily driver... Wants $10,000... your thoughts or concerns for that particular year LB7?
@@jeremyross7475 01-04 lb7s all have similar issues.
Any issues with the LMM?
@@jeremyross7475 sorry for not replying sooner as I never got a notification. The lb7 is in my opinion the best generation next to the LBZ. Only issue with the lb7 is the injector design but no emissions unless you get a California model.
Great video! I have an LB7 which has started to smoke (blue) and gives off a weak fuel smell but only after being driven and brought up to temp. Doesn't seem to smoke when driving. Smoke increases substantially once she stops and idles for 5 to 10 secs (after heating up). GM tested the injectors and they came back good. I did have a billy dog tune but I have never run my truck hard, it was more for economy.
I had the same exact issue. Ended up finding a valve lodged in my exhaust manifold
GM wonders why sales keep going down as they keep producing engines that once could be repaired in a few hours for low cost by the owners, if they were so inclined , only to design an engine that takes your savings/patience/pensions and food from the owners mouth to fix.??? I think they should fire all the engineers that make these design blunders and have the mechanics that repair them, design their engines. If I could have a nickel for every time I have scraped or skinned a knuckle or had to buy another specialty tool to fix/work on an engineers bad design, I would be a very rich man. Could you imagine how different their designs would be if the engineers had to strip down an engine in place to repair it as a mechanic does before going into production.
There are a few factors to add in there. Watching "A faster horse" on Netflix about the mustang, I think every 40 cents cost to a vehicle build takes away millions in profits at the end of a run. The engines of old don't meet the emission regulations and never will. They also don't produce near the amount of HP and torque. There is a middle ground somewhere but its a much bigger picture.
Mechanics can't design engines idiot
@@DEBOSSGARAGE I agree with you , but a bad design, is a bad design, is a bad design.
@@ramtrucks721 Keep telling yourself that and prove your limitations.
The 6.6 is a lot better then the previous motors. I had both the 6.2 and the 6.5 both hated the north climates that I live in. If the temperature got around 0 you better have them plugged in or the chances of them starting in the morning was very slim
I believe I just saw an ISUZU sticker on a valve cover?? --I'm trying to learn about my Niece's '02 LB7....
i dont agree with the last comments about being better then the 7.3 powerstroke of the same era.. i have over 500 thousand kms on 2 different engines and not one of them has needed touched as far as the engine goes and both of them were running 100 hp plus tunes on them.. absolutely bulletproof engines in comparison to the duramax
Yeah no they had their issues. And the duramax vs the 7.3 was a very short battle.
310k miles isn't a lot honestly
@@bhswarrior94 depends on the hours also. If its highway miles it's all easy on the engine very consistent loads. If your doing things like logging or extremely rough and hot environments and long hours at idle no engine likes these things.
Water pump, injectors, “excited engines/hoses that shouldnt be excited”🤣🤣 dude you’re super knowledgeable. Great video. I want an lb7 crew cab for my lawn care business so bad.
Im sure I'm still running stock injectors in my lb7, I'm saying ATF is great. Also in my opinion the stock fuel filters weren't good enough either.
6 upgrades you should do if your going to do bigger injectors on top of just a better transmission/built gears
EGT sensors
Ram air/pulling cool air from anywhere but engine compartment
Better trans cooler + some Lucas stop slip
Open the port up on the water pump flanges
4 micron fuel filter
Lower fuel lift pump
You can comfortably pull 450hp at 800-900 ft-lbs from her, with out running into slippage.
I also run a tune for fuel efficiency, which technically I'm close to failing emissions, even though the math says the overall emissions are way less than, any fully environmental friendly DPF/DEF system. Most people dont consider the total fuel used and the impact that has 7L/100k (33.5M/G) vs the 12-14L/100k(19.6-16.1M/G) that they run when filtered, Hmm I wonder what the environmental impact is for having to dig up and extract twice the ammount fuel. which fyi the more raw oil you pull from a Derrick the less efficient they are, aka diminishing returns IE the first 100 barrles of oil cost 1 barrel fuel to pump out of the ground the next 100 would cost 2.
Also the DPF only catches the cancer causing soot, not the environmentally unfriendly Nox. So today we crank up the fuel to reduce Nox for the environment, while cranking out nitrogen strands that cause cancer. Which once it settles is pretty much harmless.
While if we stop think about NOx causing all the issues, why then don't we run diesels lean as possible then add catalytic converter.. Anyone?
Also Any one looking into buying an electric car should look at the methodology and End of life, to consider environmental impact. Hell even if you took the numbers at face value you really aren't reducing emission, all this press over 0.2% that's right only 0.2% and only if you dont consider the recycling of 1000lbs of lithium ion which if you do the impact becomes greater than any modem gasoline engine.
Ya there is a lot fraud and bribery in universities right now, and no you can't call it science, because science is simply the name we give to finding honest 'How?' To how the world we live in works, Bassicaly No amount of shouting/throwing money at the sky is going to shut off the sun, instead you can pull a Mr.Burns and block out the sun.
And yes that episode of the Simpsons describes perfectly what's going on in Academia today.
I liked the LB7. Hated changing the water pump and hated that I could never get the sensor on the bottom of the fuel filters to stay in but those were the only issues I had with it.